A new Science paper provides the first high-resolution, global picture of annual forest cover change over the period 2000 to 2012. Prior to this research, the world lacked up-to-date, globally consistent forest data-- most information about forests is years out-of-date by the time it finds its way into policymakers’ hands.

Three key findings emerge from the new maps–and they point to solutions policymakers can pursue now.

Forests are the life blood of Equatorial Guinea. They cover roughly 98 percent of the total national land area, providing services and sustenance to hundreds of thousands of Equatoguineans. But despite the...

Less than four months ago, millions of people across Singapore, Malaysia and Indonesia were choking on the worst air pollution ever recorded in Southeast Asia as hundreds of fires burned across Sumatra. The fires caused serious damage, eliciting a public health emergency, closing schools and harming tourism and other businesses.

This week the Sultan of Brunei is hosting many of Asia’s heads of state for the 23rd Association of Southeast Asian Nations (ASEAN) Summit. Preventing new fires and haze are high on the agenda. Key decisions and actions are urgently needed from the presidents and prime ministers this week.

Water is never far from the news these days. This summer, northern India experienced one of its heaviest monsoon seasons in 80 years, leaving more than 800 people dead and forcing another 100,000 from their homes. Meanwhile, Central Europe faced its worst flooding in decades after heavy rains swelled major rivers like the Elbe and the Danube. In the United States, nearly half the country continues to suffer from drought, while heavy rainfall has broken records in the Northeast, devastated crops in the South, and now is inundating Colorado.

Businesses are starting to wake up to the mounting risks that water – whether in overabundance or scarcity – can pose to their operations and bottom line. At the World Economic Forum in Davos this year, experts named water risk as one of the top four risks facing business in the twenty-first century. Similarly, 53% of companies surveyed by the Carbon Disclosure Project reported that water risks are already taking a toll, owing to property damage, higher prices, poor water quality, business interruptions, and supply-chain disruptions.

The costs are mounting. Deutsche Bank Securities estimates that the recent US drought, which affected nearly two-thirds of the country’s lower 48 states, will reduce GDP growth by approximately one percentage point. Climate change, population growth, and other factors are driving up the risks. Twenty percent of global GDP already is produced in water-scarce areas. According to the International Food Policy Research Institute (IFPRI), in the absence of more sustainable water management, the share could rise to 45% by 2050, placing a significant portion of global economic output at risk.

Fires were ablaze once more on the Indonesian island of Sumatra, reaching levels almost as high as those of June 2013, when neighboring Singapore and Malaysia were smothered by record-breaking smog and haze. NASA satellites registered a total of 734 high-confidence fire alerts in Sumatra’s provinces for the period August 22-27. Fire alert numbers declined significantly August 28-29.